Scale.



T. L. KEPPLBR.

SCALE. APPLICATION FILED FEB. 29, 1912.

Patented Mar. 18, 1913.

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UNITED STATES A l" @FFICE.

THEODORE L. KEPPLER, 01 BROGKLZNE, MASSAUHUSETTS, ASSIGNQR T0 AMERICAN SUGAR REFINING COMPANY, OF? BGSTON, MASSACHUSETTS, A CORFORATION OF new JERSEY.

scans.

Patented War. 18,

Applicatioi' filed February 29, 1912 Serial '21s. 680,712.

To all whom itm-ag concern Be it known that I, THEODORE L. Kurrnsn,

a citizen of the United States, and resident cipal objects of the invention is to provide a hanger which will permit the scale platform or scale pan freelyto revolve relatively to the scale beam without exerting any appreciable twist on the pivots by which the scale beam and platform are suspended.

Other features of the invention" will be hereinafter more particularly described and pointed out in the claims.

The invention is especially designed tor use in scales of the kind described in Let ters Patent issued to me December 13, 1910. No. 978,306. In scales of this sort provision is made for lowering the scale beam and the scale platform together until the platform rests on the floor, to enable a loaded truck to be rolled directly on to the scale plat-form, after which the scale beam and platform are lifted bodily clear of the floor to Weigh the load. During thelifting and lowering of the scale beam and platform, the platform frequently tends to re valve or twist slightly with relation to the scale beam, with the result that the ltnife edge pivots by which the scale beam is suspended from its support, and by which the scale platform is suspended from the scale beam, are subjected to wear which soon. dulls them, and so affects the accuracy of the scale, and requires frequent sharpening or renewal of the knife edge pivots. Further more, should it be desired to roll the load on or oil the scale platform at an'acute angle, instead of in a direction directly at right angles with the scale beam, only slight degree of revolution or twist could be given the scale platform in the construction shown in my said former patent, and such twist would be even more detrimental to the aforesaid knife edge pivots thanwould be the accidentaltwist above referred to.

In order to permit" the free twisting or revolution of the scale platform with relation to the scale beam, without injury to the knife edge pivots, I- have provided a hanger having a swivel hearing by which the scale platform is suspended from the scale beam.

.ln the accompanying drawings, which illustrate one embodiment of the invention,l igure 1 is a side view of a hanger containing my invention and showing only such parts of the scale beam and platform frame as are necessary to a clear understanding of the device; Fig. 2 is a plan view of said hanger; and is an elevation thereof viewed at right angles to Fig. 1.

A is a fragmentary view of a scale beam of usual construction having the knife edge pivot pins as and a, the former supporting the scale beam in the usual way from suitable supports, and the latter suppor'ing the depending scale platform. The top member of the platform frame herein shown coo.- sists of two angle iron bars B, B. As ordinarily constructed, the top frame member is supported from the knife edge pivot a by a hook or loop 0' which engages a ring}; or loop on the platform frame as illustrated in. the crawinq of my said formenpatcnt.

In order to permit the scale platform to revolve relatively to the scale beam, l. proride a hanger suspende from the scale beam by hook (1. provided with a swivel bearii'ig, from which is suspended the platform frame. This hanger consists of a stem at euterioriy threaded, to the lower end of which is fastened a horizontal supportingdisk (5 which serves as a bearing head for the antifriction bearing hereinafter de scribed.

The supporting disk d is preferably made. with a sleeve (Z and the disk and sleeve are screwed upon the threaded stem 0 and locked in by a lock screw (i At. the upper end of the stem al is a cross head al provided at each end with an upright (7 ex.- tending upwardly from the cross head. uprights d are preterably screw-thread x Extending between the uprights (Z is a. yoke (i the ends of which are made with rin collars which slip over the uprights that the yoke (Z adjustable vertically thereon, and is held in the desired position 11. a. 'ustinent by nuts (1" screwed on to the 'i'iprights Z above the yoke. 'ihc hook I} engages the yoke Z and suppi'iris the ban Theparts of the hanger thus far describ may be considered as together constituting one member of the hanger, which member is not revoluble. Revolubly mounted on said non-revolublemember is another bearing member, herein shown as an annular bearing disk (i surrounding the stem (1 and sleeve d Between tbglnon-revoluble bearing disk roller or ball be rings (1.

The top bars upon the bearing disk (i and are secured thereto by screws or rivets, so that the platform frame is supported by the revoluble member of the hanger andmay be freely revolved relatively to the scale beam without putting any appreciable strain or twist or wear on the knife edge pivots a and a of the d and the revok ble bearing disk d are the scale beam. The top bars B are oppositely curved, as shown at b, to.fit around the stem 0? and sleeve d thus reducing the extent of separation of the main body of bars B, which I are seated on opposite sides of the stem 01..

b is a washer between the tops of sleeve 05 and the curved parts 6, and a shoulder or stem d.

The height of the scale platform with relation to the scale beam and the floor may be adjusted by. adjusting the yoke d on the uprights (P, which in effect lengthens or shortens the hanger, as desired.

1. In combination, a scale beam, a platform frame, a hanger by which said plat form frame is supported from said scale beam, and a swivel in said hanger between said beam and frame, said hanger having a pair of uprights and a yoke adjustably secured to said uprights, by which the hanger is suspended from said beam.

2. In combination, a scale beam, a hanger of the platform frame rest stem, to reduce thelextent of the separation of the bars by the stem.

3. A hanger for supporting a platform framefrom a scale beam, comprising a stem, a horizontal bearing head at the lower end of said stem, a revoluble bearing member mounted on said head around the stem, at

cross head at the upper end of said stem, a pair of uprights extending upward from said. cross head, and a yoke extending between and secured upon said uprights.

4. A hanger for supporting a'platform frame from a scale beam, comprising a stem, a horizontal bearing head at the lower end of said stem, a revoluble bearing member mounted on said head around the stem, a cross head at the upper end of said stein, a pair of uprights extending upward from said cross head, a yoke between said uprights and vertically adjustable thereon, and means to secure said yoke in adjusted position upon said uprights.

Signed by me at Boston, Massachusetts, this 24th day of February, 1912.

3 THEODORE L. KEPPLER.

Witnesses:

CHARLES -D. WOODBERRY, ROBERT CUsHMAN. 

